Camera optical lens

ABSTRACT

The present disclosure relates to an optical lens, in particular to a camera optical lens. The camera optical lens includes, from an object side to an image side in sequence: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, the second lens has a positive refractive power, and the third lens has a negative refractive power, and the camera optical lens satisfies the following conditions: −5.00≤f1/f3≤−1.00, and 5.00≤R5/R6≤7.00, where f1 denotes a focal length of the first lens, f3 denotes a focal length of the third lens, R5 denotes a curvature radius of an object-side surface of the third lens, R6 denotes a curvature radius of an image-side surface of the third lens. The camera optical lens can obtain high imaging performance and a low TTL.

TECHNICAL FIELD

The present disclosure relates to an optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesor digital cameras, and camera devices such as monitors or PC lenses.

BACKGROUND

With an emergence of smart phones in recent years, a demand forminiature camera lens is gradually increasing, and a photosensitivedevice of a general camera lens is no other than a charge coupled device(CCD) or a complementary metal-oxide semiconductor (CMOS) sensor. Sincea progress of a semiconductor manufacturing technology makes a pixelsize of the photosensitive device smaller, a current development trendof electronic products is that their functions should be better andtheir shape should be thinner and smaller, the miniature camera lenswith good imaging quality has become a mainstream in the market. Inorder to obtain better imaging quality, the lens that is traditionallyequipped in a mobile phone camera adopts a three-piece or a four-piecelens structure. Besides, with a development of technologies and anincrease of diverse demands of users, and under a circumstance that apixel area of the photosensitive device is shrinking and a requirementof the system for the imaging quality is improving constantly, afive-piece, a six-piece and a seven-piece lens structure graduallyappear in a lens design. There is an urgent need for ultra-thinwide-angle camera lenses which have good optical characteristics andfully corrected chromatic aberration.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

To make objectives, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, many technicaldetails in the embodiments of the present disclosure are provided tomake readers better understand the present disclosure. However, evenwithout these technical details and any changes and modifications basedon the following embodiments, technical solutions required to beprotected by the present disclosure can be implemented.

Embodiment 1

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 shows the camera optical lens 10 inEmbodiment 1 of the present disclosure, and the camera optical lens 10includes six lenses. Specifically, the camera optical lens 10 includesfrom an object side to an image side in sequence: an aperture S1, afirst lens L1, a second lens L2, a third lens L3, a fourth lens L4, afifth lens L5 and a sixth lens L6. An optical element such as an opticalfilter GF can be arranged between the sixth lens L6 and an image surfaceSi.

The first lens L1, the second lens L2, the third lens L3, the fourthlens L4, the fifth lens L5, and the sixth lens L6 are made of plasticmaterials.

Herein, a focal length of the first lens L1 is defined as f1, a focallength of the third lens L3 is defined as f3. The camera optical lens 10satisfies the following condition: −5.00≤f1/f3≤−1.00. An appropriatedistribution of the refractive power leads to better imaging quality andlower sensitivity. Preferably, the camera optical lens 10 satisfies thefollowing condition: −4.98≤f1/f3≤−1.08.

A curvature radius of an object-side surface of the third lens isdefined as R5, a curvature radius of an image-side surface of the thirdlens is defined as R6. The camera optical lens 10 satisfies thefollowing condition: 5.00≤R5/R6≤7.00, which specifies a shape of thethird lens L3. When the value is within this range, with a developmenttowards ultra-thin and wide-angle lenses, it is beneficial for solving aproblem of an on-axis chromatic aberration. Preferably, the cameraoptical lens 10 satisfies the following condition: 5.00≤R5/R6≤6.98.

A total optical length from an object-side surface of the first lens L1to the image surface Si of the camera optical lens along an optical axisis defined as TTL.

In the present disclosure, when the focal length f1 of the first lensL1, the focal length f3 of third lens L3, the curvature radius R5 of theobject-side surface of the third lens L3 and the curvature radius R6 ofthe image-side surface of the third lens L3 satisfy the aboveconditions, the camera optical lens 10 has an advantage of highperformance and satisfies a design requirement for a low TTL.

In this embodiment, an object-side surface of the first lens L1 isconvex in a paraxial region, an image-side surface of the first lens L1is concave in the paraxial region, and the first lens L1 has a positiverefractive power.

Herein, a focal length of the camera optical lens 10 is defined as f,and the focal length of the first lens L1 is defined as f1. The cameraoptical lens 10 satisfies the following condition: 1.59≤f1/f≤17.83,which specifies a ratio of the focal length of the first lens L1 and thefocal length of the camera optical lens 10. When the value is withinthis range, the first has an appropriate positive refractive power,which is beneficial for correcting an aberration of the camera opticallens 10. and the development towards ultra-thin and wide-angle lenses.Preferably, the camera optical lens 10 satisfies the followingcondition: 2.55≤f1/f≤14.26.

A curvature radius of the object-side surface of the first lens L1 isdefined as R1 and a curvature radius of the image-side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 satisfies thefollowing condition: −11.37≤(R1+R2)/(R1−R2)≤−1.07, which reasonablycontrols a shape of the first lens, so that the first lens mayeffectively correct a spherical aberration of the camera optical lens10. Preferably, the following condition shall be satisfied:−7.11≤(R1+R2)/(R1−R2)≤−1.34.

An on-axis thickness of the first lens L1 is defined as d1, whichsatisfies the following condition: 0.03≤d1/TTL≤0.10. When the conditionis satisfied, it is beneficial for realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.05≤d1/TTL≤0.08.

In this embodiment, an object-side surface of the second lens L2 isconvex s in the paraxial region, an image-side surface of the secondlens L2 is convex in the paraxial region, and the second lens L2 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f, and afocal length of the second lens L2 is defined as f2. The camera opticallens 10 satisfies the following condition: 0.51≤f2/f≤2.08. When thecondition is satisfied, a positive refractive power of the second lensL2 is controlled within a reasonable range, which is beneficial forcorrecting an aberration of the camera optical lens 10. Preferably, thefollowing condition shall be satisfied: 0.82≤f2/f≤1.67.

A curvature radius of the object-side surface of the second lens L2 isdefined as R3 and a curvature radius of the image-side surface of thesecond lens L2 is defined as R4 The camera optical lens 10 satisfies thefollowing condition: −1.88≤(R3+R4)/(R3−R4)≤−0.44, which specifies ashape of the second lens L2. When the value is within this range, with adevelopment towards ultra-thin and wide-angle lenses, it is beneficialfor solving a problem of an on-axis aberration. Preferably, thefollowing condition shall be satisfied: −1.18≤(R3+R4)/(R3−R4)≤−0.55.

An on-axis thickness of the second lens L2 is defined as d3, whichsatisfies the following condition: 0.05≤d3/TTL≤0.17. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.09≤d3/TTL≤0.14.

In this embodiment, an object-side surface of the third lens L3 isconvex in the paraxial region, an image-side surface of the third lensL3 is concave in the paraxial region, and the third lens L3 has anegative refractive power.

The focal length of the camera optical lens 10 is defined as f and thefocal length of the third lens L3 is defined as f3. The camera opticallens 10 satisfies the following condition: −5.53≤f3/f≤−1.57. Anappropriate distribution of the refractive power leads to better imagingquality and lower sensitivity. Preferably, the following condition shallbe satisfied: −3.46≤f3/f≤−1.96.

A curvature radius of the object-side surface of the third lens L3 isdefined as R5 and a curvature radius of the image-side surface of thethird lens L3 is defined as R6. The camera optical lens 10 satisfies thefollowing condition: 0.67≤(R5+R6)/(R5−R6)≤2.25. A shape of the thirdlens L3 is effectively controlled, thereby facilitating shaping of thethird lens L3 and avoiding bad shaping and generation of stress due toan overly large surface curvature of the third lens L3. Preferably, thefollowing condition shall be satisfied: 1.07≤(R5+R6)/(R5−R6)≤1.80.

An on-axis thickness of the third lens L3 is defined as d5, whichsatisfies the following condition: 0.02≤d5/TTL≤0.07. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.04≤d5/TTL≤0.06.

In this embodiment, an object-side surface of the fourth lens L4 isconcave in the paraxial region and an image-side surface of the fourthlens L4 is convex in the paraxial region, and the fourth lens L4 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the fourth lens L4 is defined as f4. The camera opticallens 10 satisfies the following condition: 1.22≤f4/f≤3.78. When thecondition is satisfied, the appropriate distribution of the refractivepower makes it possible that the camera optical lens 10 has the betterimaging quality and lower sensitivity. Preferably, the followingcondition shall be satisfied: 1.95≤f4/f≤3.03.

A curvature radius of the object-side surface of the fourth lens L4 isdefined as R7 and a curvature radius of the image-side surface of thefourth lens L4 is defined as R8 The camera optical lens 10 satisfies thefollowing condition: 1.89≤(R7+R8)/(R7−R8)≤5.90, which specifies a shapeof the fourth lens L4. When the value is within this range, with thedevelopment towards ultra-thin and wide-angle lens, it is beneficial forsolving a problem like an off-axis aberration. Preferably, the followingcondition shall be satisfied: 3.02≤(R7+R8)/(R7−R8)≤4.72.

An on-axis thickness d7 of the fourth lens L4 satisfies the followingcondition: 0.04≤d7/TTL≤0.13. When the condition is satisfied, it isbeneficial for the realization of ultra-thin lenses. Preferably, thefollowing condition shall be satisfied: 0.07≤d7/TTL≤0.11.

In this embodiment, an object-side surface of the fifth lens L5 isconcave in the paraxial region and an image-side surface of the fifthlens L5 is convex in the paraxial region, and the fifth lens L5 has anegative refractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the fifth lens L5 is defined as f5. The camera opticallens 10 satisfies the following condition: −3.81≤f5/f≤−1.16, which caneffectively make a light angle of the camera lens gentle and reducetolerance sensitivity. Preferably, the following condition shall besatisfied: −2.38≤f5/f≤−1.45.

A curvature radius of an object-side surface of the fifth lens L5 isdefined as R9 and a curvature radius of an image-side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 satisfiesthe following condition: −11.45≤(R9+R10)/(R9−R10)≤−3.60, which specifiesa shape of the fifth lens L5. When the value is within this range, withthe development towards ultra-thin and wide-angle lenses, it isbeneficial for solving the problem like the off-axis aberration.Preferably, the following condition shall be satisfied:−7.16≤(R9+R10)/(R9−R10)≤−4.50.

An on-axis thickness d9 of the fifth lens L5 satisfies the followingcondition: 0.03≤d9/TTL≤0.10. When the condition is satisfied, it isbeneficial for the realization of ultra-thin lenses. Preferably, thefollowing condition shall be satisfied: 0.05≤d9/TTL≤0.08.

In this embodiment, an object-side surface of the sixth lens L6 isconvex in the paraxial region, an image-side surface of the sixth lensL6 is concave in the paraxial region. The sixth lens L6 has a positiverefractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the sixth lens L6 is defined as f6. The camera opticallens 10 satisfies the following condition: 0.96≤f6/f≤3.00. When thecondition is satisfied, the appropriate distribution of the refractivepower makes it possible that the camera optical lens 10 has the betterimaging quality and lower sensitivity. Preferably, the followingcondition shall be satisfied: 1.53≤f6/f≤2.40.

A curvature radius of the object-side surface of the sixth lens L6 isdefined as R11 and a curvature radius of the image-side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 satisfiesthe following condition: −623.45≤(R11+R12)/(R11−R12)≤−53.03, whichspecifies a shape of the sixth lens L6. When the value is within thisrange, with the development towards ultra-thin and wide-angle lenses, itis beneficial for solving a problem like the off-axis aberration.Preferably, the following condition shall be satisfied:−389.66≤(R11+R12)/(R11−R12)≤−66.28.

An on-axis thickness of the sixth lens L6 is defined as d11, whichsatisfies the following condition: 0.09≤d11/TTL≤0.29. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.15≤d11/TTL≤0.23.

In this embodiment, a combined focal length of the first lens and thesecond lens is defined as f12. The camera optical lens satisfy thefollowing condition: 0.47≤f12/f≤1.48. In this way, the aberration anddistortion of the camera optical lens may be removed, and a back focallength of the camera optical lens may be reduced, so thatminiaturization of the camera optical lens is maintained. Preferably,the following condition shall be satisfied: 0.76≤f12/f≤1.18.

In this embodiment, the TTL of the camera optical lens 10 is less thanor equal to 5.06 mm, which is beneficial for the realization ofultra-thin lenses. Preferably, the TTL of the camera optical lens 10 isless than or equal to 4.83 mm.

In this embodiment, an F number of the camera optical lens 10 is lessthan or equal to 2.10 mm. The camera optical lens 10 has a large Fnumber and better imaging performance. Preferably, the F number of thecamera optical lens 10 is less than or equal to 2.06 mm.

With such design, the TTL of the camera optical lens 10 can be made asshort as possible, thus the miniaturization characteristics can bemaintained.

In the following, an example will be used to describe the camera opticallens 10 of the present disclosure. Symbols recorded in each example areas follows. A unit of a focal length, an on-axis distance, a curvatureradius, an on-axis thickness, an inflexion point position and an arrestpoint position is mm.

TTL: a total optical length from an object-side surface of the firstlens to an image surface of the camera optical lens along an optic axis,with a unit of mm.

Preferably, inflexion points and/or arrest points can also be arrangedon the object-side surface and/or image-side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

Design data of the camera optical lens 10 in Embodiment 1 of the presentdisclosure is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= 0.010 R1 4.346 d1= 0.294 nd1 1.5445 ν1 55.99R2 18.578 d2= 0.043 R3 2.525 d3= 0.497 nd2 1.5445 ν2 55.99 R4 −83.019d4= 0.164 R5 23.832 d5= 0.212 nd3 1.6613 ν3 20.37 R6 4.762 d6= 0.323 R7−3.272 d7= 0.398 nd4 1.5352 ν4 56.09 R8 −1.930 d8= 0.127 R9 −0.796 d9=0.297 nd5 1.6713 ν5 19.24 R10 −1.157 d10= 0.030 R11 1.046 d11= 0.891 nd61.5352 ν6 56.09 R12 1.069 d12= 1.015 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Meanings of the above symbols are as follows.

S1: Aperture;

R: curvature radius of an optical surface, or a central curvature radiusfor a lens;

R1: curvature radius of the object-side surface of the first lens L1;

R2: curvature radius of the image-side surface of the first lens L1;

R3: curvature radius of the object-side surface of the second lens L2;

R4: curvature radius of the image-side surface of the second lens L2;

R5: curvature radius of the object-side surface of the third lens L3;

R6: curvature radius of the image-side surface of the third lens L3;

R7: curvature radius of the object-side surface of the fourth lens L4;

R8: curvature radius of the image-side surface of the fourth lens L4;

R9: curvature radius of the object-side surface of the fifth lens L5;

R10: curvature radius of the image-side surface of the fifth lens L5;

R11: curvature radius of the object-side surface of the sixth lens L6;

R12: curvature radius of the image-side surface of the sixth lens L6;

R13: curvature radius of an object-side surface of the optical filterGF;

R14: curvature radius of an image-side surface of the optical filter GF;

d: on-axis thickness of the lens or a on-axis distance between thelenses;

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image-side surface of the sixth lens L6to the object-side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from an image-side surface to an image surface ofthe optical filter GF;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspheric surface coefficients K A4 A6 A8 A10A12 A14 A16 R1 −8.9620E+00 −1.4115E−01 −8.2262E−02   7.1533E−021.9623E−01 −8.8715E−01  1.3831E+00 −7.4679E−01  R2 −1.0754E+02−2.9940E−01 2.5733E−01 −1.7840E−01 −3.2474E−02  3.4518E−01 −4.8556E−012.5679E−01 R3 −1.1419E+01 −3.3640E−03 1.7505E−01 −8.8980E−02 −8.4614E−02−8.1561E−03  4.0090E−02 3.0879E−02 R4  1.0002E+02 −2.8106E−02−1.1684E−01  −1.0823E−01 1.7635E−01 −5.9108E−02 −2.5327E−02 7.6451E−02R5  1.4513E+02 −1.4897E−01 −1.3553E−01  −8.0848E−02 1.9595E−01 2.0019E−01 −1.2122E−02 −1.2394E−01  R6  3.8888E+00 −5.0585E−02−7.5775E−02   2.1082E−02 8.5102E−02  2.6198E−02 −5.2499E−02 3.2065E−02R7 −2.3582E+00 −1.1929E−01 3.0579E−02  1.1021E−02 −4.5194E−02−2.5273E−02  8.1112E−02 −5.8099E−03  R8  1.5419E+00 −1.0923E−015.6708E−02  2.6247E−02 1.0244E−02  1.3142E−02  5.7469E−03 −3.2530E−03 R9 −5.9933E+00 −7.7307E−03 4.7241E−03  8.9972E−03 −1.6613E−03−5.2367E−03 −1.9339E−03 8.5570E−04 R10 −3.8905E+00  4.3434E−02−1.7087E−02  −1.5949E−03 2.3440E−04  1.3197E−04  2.7097E−05 −4.9931E−05 R11 −7.1137E+00 −7.2305E−02 1.1056E−02  1.1812E−04 −4.6284E−05−5.5484E−06 −2.0699E−06 3.2824E−07 R12 −4.4029E+00 −3.8282E−026.8781E−03 −9.4851E−04 5.2258E−05 −5.2537E−07 −7.3440E−08 8.8011E−09

Herein, K is a conic coefficient, A4, A6, A8, A10, A12, A14, A16 areaspheric surface coefficients.

IH: an image height

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶   (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentdisclosure is not limited to the aspherical polynomial form shown in thecondition (1).

Table 3 and table 4 show design data of the inflexion points and thearrest point of the camera optical lens 10 in Embodiment 1 of thepresent disclosure. Herein, P1R1 and P1R2 represent the object-sidesurface and the image-side surface of the first lens L1, P2R1 and P2R2represent the object-side surface and the image-side surface of thesecond lens L2, P3R1 and P3R2 represent the object-side surface and theimage-side surface of the third lens L3, P4R1 and P4R2 represent theobject-side surface and the image-side surface of the fourth lens L4,P5R1 and P5R2 represent the object-side surface and the image-sidesurface of the fifth lens L5, P6R1 and P6R2 represent the object-sidesurface and the image-side surface of the sixth lens L6. The data in thecolumn named “inflexion point position” are vertical distances from theinflexion points arranged on each lens surface to the optic axis of thecamera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.345 P1R2 1 0.125 P2R1 0 P2R2 1 0.875 P3R1 2 0.1550.785 P3R2 2 0.485 0.705 P4R1 1 0.885 P4R2 1 0.885 P5R1 0 P5R2 0 P6R1 20.545 1.765 P6R2 1 0.765

TABLE 4 Arrest point Arrest point number position 1 P1R1 1 0.575 P1R2 10.215 P2R1 0 P2R2 0 P3R1 1 0.255 P3R2 0 P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R11 1.285 P6R2 1 1.855

FIG. 2 and FIG. 3 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 470 nm, 550nm, and 650 nm passes through the camera optical lens 10 inEmbodiment 1. FIG. 4 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 550 nm passesthrough the camera optical lens 10 in Embodiment 1. The field curvatureS in FIG. 4 is a field curvature in the sagittal direction, and T is afield curvature in a tangential direction.

The following Table 13 shows various values of the embodiments 1, 2, 3corresponding to the parameters which are already specified in theconditions.

As shown in Table 13, Embodiment 1 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.587 mm, an image height of 1.0 H is 3.2840 mm, an FOV (fieldof view) is 89.94°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is substantially the same with Embodiment 1, and themeanings of symbols in this embodiment are the same with that ofEmbodiment 1. In the following, only differences are described.

Table 5 and table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R D nd νd S1 ∞ d0= 0.020 R1 5.461 d1= 0.273 nd1 1.5445 ν1 55.99R2 9.609 d2= 0.029 R3 2.159 d3= 0.528 nd2 1.5445 ν2 55.99 R4 −13.142 d4=0.163 R5 25.048 d5= 0.210 nd3 1.6613 ν3 20.37 R6 4.175 d6= 0.334 R7−3.323 d7= 0.403 nd4 1.5352 ν4 56.09 R8 −1.932 d8= 0.112 R9 −0.795 d9=0.301 nd5 1.6713 ν5 19.24 R10 −1.155 d10= 0.030 R11 1.044 d11= 0.896 nd61.5352 ν6 56.09 R12 1.071 d12= 1.010 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspheric surface coefficients K A4 A6 A8 A10A12 A14 A16 R1 −1.9928E+01 −1.4469E−01 −6.5978E−02   8.2580E−021.2795E−01 −8.7378E−01   1.4966E+00 −8.3992E−01 R2 −1.3585E+02−2.9856E−01 2.2272E−01 −1.5525E−01 −4.5610E−02  3.3503E−01  −4.3228E−01 2.1092E−01 R3 −8.2808E+00 −1.3253E−03 1.4418E−01 −1.2136E−01−8.4051E−02  3.8686E−02  8.7306E−02 −8.2110E−02 R4 −5.0486E+01−1.1765E−02 −8.6598E−02  −1.9677E−01 1.8084E−01 3.2683E−02  7.8589E−03−5.8851E−02 R5  1.4367E+02 −1.3514E−01 −1.3743E−01  −6.7162E−022.3108E−01 1.7240E−01 −7.4577E−02 −9.8160E−02 R6  3.3828E+00 −5.2292E−02−7.2837E−02   2.4120E−02 8.5914E−02 2.1713E−02 −4.1160E−02  1.7283E−02R7 −6.9174E−01 −1.2303E−01 3.6951E−02  1.5255E−02 −4.7023E−02 −2.8868E−02   7.9846E−02  1.5910E−03 R8  1.5270E+00 −1.0901E−015.6090E−02  2.6385E−02 1.0652E−02 1.3200E−02  5.6361E−03 −3.1870E−03 R9−5.9957E+00 −5.5761E−03 5.5509E−03  9.0720E−03 −1.6546E−03  −5.1269E−03 −1.6705E−03  1.0619E−03 R10 −3.7752E+00  4.2478E−02 −1.7040E−02 −1.4345E−03 3.3660E−04 1.7373E−04  3.4751E−05 −5.0747E−05 R11−7.0924E+00 −7.2607E−02 1.1081E−02  1.3028E−04 −4.4710E−05  −5.3835E−06 −2.0554E−06  3.2409E−07 R12 −4.3575E+00 −3.8288E−02 6.8664E−03−9.4569E−04 5.2929E−05 −4.6754E−07  −7.0713E−08  8.3637E−09

Table 7 and table 8 show design data of inflexion points and arrestpoints of the camera optical lens 20 lens in Embodiment 2 of the presentdisclosure.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.305 P1R2 1 0.175 P2R1 1 0.755 P2R2 0 P3R1 2 0.1550.785 P3R2 2 0.535 0.675 P4R1 1 0.875 P4R2 1 0.885 P5R1 0 P5R2 0 P6R1 20.545 1.745 P6R2 2 0.775 2.765

TABLE 8 Arrest point Arrest point Arrest point number position 1position 2 P1R1 1 0.515 P1R2 1 0.305 P2R1 0 P2R2 0 P3R1 1 0.255 P3R2 0P4R1 0 P4R2 0 P5R1 0 P5R2 0 P6R1 2 1.285 2.275 P6R2 1 1.865

FIG. 6 and FIG. 7 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 470 nm, 550nm, and 650 nm passes through the camera optical lens 20 in Embodiment2. FIG. 8 shows schematic diagrams of a field curvature and a distortionobtained when light with a wavelength of 550 nm passes through thecamera optical lens 20 in Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.579 mm, an image height of 1.0 H is 3.284 mm, an FOV (field ofview) is 90.46°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics

Embodiment 3

Embodiment 3 is substantially the same with Embodiment 1, and themeanings of symbols in this embodiment are the same as that ofEmbodiment 1. In the following, only differences are described.

Table 9 and table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R D nd Nd S1 ∞ d0= 0.030 R1 6.408 d1= 0.279 nd1 1.5445 ν1 55.99R2 9.144 d2= 0.034 R3 2.106 d3= 0.522 nd2 1.5445 ν2 55.99 R4 −10.406 d4=0.169 R5 30.235 d5= 0.216 nd3 1.6613 ν3 20.37 R6 4.351 d6= 0.331 R7−3.248 d7= 0.399 nd4 1.5352 ν4 56.09 R8 −1.932 d8= 0.129 R9 −0.780 d9=0.295 nd5 1.6713 ν5 19.24 R10 −1.110 d10= 0.030 R11 1.018 d11= 0.854 nd61.5352 ν6 56.09 R12 1.025 d12= 1.031 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.100

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspheric surface coefficients K A4 A6 A8 A10A12 A14 A16 R1 −1.2642E+01 −1.4063E−01 −5.5308E−02   8.1417E−021.2996E−01 −8.8597E−01   1.4696E+00 −8.2012E−01 R2 −1.3124E+02−2.9654E−01 2.2757E−01 −1.7108E−01 −4.7036E−02  3.3895E−01 −4.4597E−01 2.0719E−01 R3 −8.0008E+00 −2.1237E−02 1.2021E−01 −1.2646E−01−9.9472E−02  1.0918E−02  6.7237E−02 −8.6007E−02 R4  3.3147E+01−1.8290E−02 −1.0389E−01  −1.9177E−01 1.7413E−01 1.0717E−02 −4.6448E−03−4.0236E−02 R5  1.4509E+02 −1.3682E−01 −1.3267E−01  −6.3087E−022.3162E−01 1.7829E−01 −6.9756E−02 −1.0032E−01 R6  2.7553E+00 −5.3566E−02−7.4142E−02   2.2245E−02 8.3510E−02 1.7696E−02 −4.4719E−02  2.7357E−02R7 −1.5152E+00 −1.2076E−01 3.0872E−02  1.2118E−02 −4.6404E−02 −2.6928E−02   8.0599E−02 −1.0293E−03 R8  1.5323E+00 −1.0737E−015.7475E−02  2.6890E−02 1.0766E−02 1.3236E−02  5.6167E−03 −3.2856E−03 R9−5.8648E+00 −2.9311E−03 4.7022E−03  9.3057E−03 −1.7884E−03  −5.3356E−03 −1.8120E−03  9.8925E−04 R10 −3.7003E+00  4.5365E−02 −1.6724E−02 −1.4904E−03 3.1169E−04 1.6387E−04  2.9909E−05 −5.1681E−05 R11−6.7235E+00 −7.2767E−02 1.1013E−02  1.2577E−04 −4.5119E−05  −5.4323E−06 −2.0622E−06  3.2304E−07 R12 −4.3094E+00 −3.9254E−02 7.0198E−03−9.4416E−04 5.2426E−05 −5.3600E−07  −7.7762E−08  7.8500E−09

Table 11 and table 12 show design data of inflexion points and arrestpoints of the camera optical lens 30 lens in Embodiment 3 of the presentdisclosure.

TABLE 11 Inflexion point Inflexion point Inflexion point number position1 position 2 P1R1 1 0.295 P1R2 1 0.175 P2R1 1 0.645 P2R2 0 P3R1 2 0.1450.775 P3R2 2 0.505 0.705 P4R1 1 0.885 P4R2 1 0.875 P5R1 0 P5R2 0 P6R1 20.545 1.775 P6R2 1 0.755 0

TABLE 12 Arrest point Arrest point number position 1 P1R1 1 0.495 P1R2 10.305 P2R1 1 0.855 P2R2 0 P3R1 1 0.235 P3R2 0 P4R1 0 P4R2 0 P5R1 0 P5R20 P6R1 1 1.305 P6R2 1 1.865

FIG. 10 and FIG. 11 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 470 nm, 550nm, and 650 nm passes through the camera optical lens 30 in Embodiment3. FIG. 12 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 550 nm passesthrough the camera optical lens 30 in Embodiment 3.

The following Table 13 shows the values corresponding to the conditionsin this embodiment. Obviously, this embodiment satisfies the variousconditions.

In this embodiment, a pupil entering diameter of the camera optical lensis 1.569 mm, an image height of 1.0H is 3.284 mm, an FOV (field of view)is 90.84°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f 3.238 3.205 3.184 f1 10.309 22.632 37.840 f2 4.495 3.436 3.254 f3−8.959 −7.540 −7.642 f4 7.941 7.803 8.029 f5 −5.630 −5.672 −6.060 f66.225 6.131 6.370 f12 3.195 3.039 3.046 FNO 2.04 2.03 2.03 f1/f3 −1.15−3.00 −4.95 R5/R6 5.01 6.00 6.95

Persons of ordinary skill in the art can understand that, the aboveembodiments are specific examples for implementing the presentdisclosure, and during actual application, various changes may be madeto forms and details of the examples without departing from the spiritand scope of the present disclosure.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens and a sixth lens, the second lens hasa positive refractive power, and the third lens has a negativerefractive power; wherein the camera optical lens satisfies thefollowing conditions:−5.00≤f1/f3≤−1.00; and5.00≤R5/R6≤7.00; where f1 denotes a focal length of the first lens; f3denotes a focal length of the third lens; R5 denotes a curvature radiusof an object-side surface of the third lens; and R6 denotes a curvatureradius of an image-side surface of the third lens.
 2. The camera opticallens according to claim 1, further satisfying the following conditions:−4.98≤f1/f3≤−1.08; and5.00≤R5/R6≤6.98.
 3. The camera optical lens according to claim 1,wherein the first lens has a positive refractive power, and anobject-side surface of the first lens is convex in a paraxial region andan image-side surface of the first lens is concave in the paraxialregion; wherein the camera optical lens satisfies the followingconditions:1.59≤f1/f≤17.83;−11.37≤(R1+R2)/(R1−R2)≤−1.07; and0.03≤d1/TTL≤0.10; where f denotes a focal length of the camera opticallens; R1 denotes a curvature radius of an object-side surface of thefirst lens; R2 denotes a curvature radius of an image-side surface ofthe first lens; d1 denotes an on-axis thickness of the first lens; andTTL denotes a total optical length from the object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis.
 4. The camera optical lens according to claim 3, furthersatisfying the following conditions:2.55≤f1/f≤14.26;−7.11≤(R1+R2)/(R1−R2)≤−1.34; and0.05≤d1/TTL≤0.08.
 5. The camera optical lens according to claim 1,wherein an object-side surface of the second lens is convex in aparaxial region and an image-side surface of the second lens is convexin the paraxial region; wherein the camera optical lens satisfies thefollowing conditions:0.51≤f2/f≤2.08;−1.88≤(R3+R4)/(R3−R4)≤−0.44; and0.05≤d3/TTL≤0.17; where f denotes a focal length of the camera opticallens; f2 denotes a focal length of the second lens; R3 denotes acurvature radius of an object-side surface of the second lens; R4denotes a curvature radius of an image-side surface of the second lens;d3 denotes an on-axis thickness of the second lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 6.The camera optical lens according to claim 5, further satisfying thefollowing conditions:0.82≤f2/f≤1.67;−1.18≤(R3+R4)/(R3−R4)≤−0.55; and0.09≤d3/TTL≤0.14.
 7. The camera optical lens according to claim 1,wherein an object-side surface of the third lens is convex in a paraxialregion and an image-side surface of the third lens is concave in theparaxial region; wherein the camera optical lens satisfies the followingconditions:−5.53≤f3/f≤−1.57;0.67≤(R5+R6)/(R5−R6)≤2.25; and0.02≤d5/TTL≤0.07; where f denotes a focal length of the camera opticallens; d5 denotes an on-axis thickness of the third lens; and TTL denotesa total optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 8.The camera optical lens according to claim 7, further satisfying thefollowing conditions:−3.46≤f3/f≤−1.96;1.07≤(R5+R6)/(R5−R6)≤1.80; and0.04≤d5/TTL≤0.06.
 9. The camera optical lens according to claim 1,wherein the fourth lens has a positive refractive power, and comprisesan object-side surface being concave in a paraxial region and animage-side surface being convex in the paraxial region; wherein thecamera optical lens satisfies the following conditions:1.22≤f4/f≤3.78;1.89≤(R7+R8)/(R7−R8)≤5.90; and0.04≤d7/TTL≤0.13; where f denotes a focal length of the camera opticallens; f4 denotes a focal length of the fourth lens; R7 denotes acurvature radius of an object-side surface of the fourth lens; R8denotes a curvature radius of an image-side surface of the fourth lens;d7 denotes an on-axis thickness of the fourth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 10.The camera optical lens according to claim 9, further satisfying thefollowing conditions:1.95≤f4/f≤3.03;3.02≤(R7+R8)/(R7−R8)≤4.72; and0.07≤d7/TTL≤0.11.
 11. The camera optical lens according to claim 1,wherein the fifth lens has a negative refractive power, and comprises anobject-side surface being concave in a paraxial region and an image-sidesurface being convex in the paraxial region; wherein the camera opticallens satisfies the following conditions:−3.81≤f5/f≤−1.16;−11.45≤(R9+R10)/(R9−R10)≤−3.60; and0.03≤d9/TTL≤0.10; where f denotes a focal length of the camera opticallens; f5 denotes a focal length of the fifth lens; R9 denotes acurvature radius of an object-side surface of the fifth lens; R10denotes a curvature radius of an image-side surface of the fifth lens;d9 denotes an on-axis thickness of the fifth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 12.The camera optical lens according to claim 11, further satisfying thefollowing conditions:−2.38≤f5/f≤−1.45;−7.16≤(R9+R10)/(R9−R10)≤−4.50; and0.05≤d9/TTL≤0.08.
 13. The camera optical lens according to claim 1,wherein the sixth lens has a positive refractive power, and comprises anobject-side surface being convex in a paraxial region and an image-sidesurface being concave in the paraxial region; wherein the camera opticallens satisfies the following conditions:0.96≤f6/f≤3.00;−623.45≤(R11+R12)/(R11−R12)≤−53.03; and0.09≤d11/TTL≤0.29; where f denotes a focal length of the camera opticallens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of an object-side surface of the sixth lens; R12denotes a curvature radius of an image-side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 14.The camera optical lens according to claim 13, further satisfying thefollowing conditions:1.53≤f6/f≤2.40;−389.66≤(R11+R12)/(R11−R12)≤−66.28; and0.15≤d11/TTL≤0.23.
 15. The camera optical lens according to claim 1,wherein the camera optical lens satisfies the following condition:0.47≤f12/f≤1.48; where f12 denotes a combined focal length of the firstlens and the second lens; and f denotes a focal length of the cameraoptical lens.
 16. The camera optical lens according to claim 15, whereinfurther satisfying the following condition:0.76≤f12/f≤1.18.
 17. The camera optical lens according to claim 1,wherein a total optical length TTL from an object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis is less than or equal to 5.06 mm.
 18. The camera opticallens according to claim 17, wherein the total optical length TTL of thecamera optical lens is less than or equal to 4.83 mm.
 19. The cameraoptical lens according to claim 1, wherein an F number of the cameraoptical lens is less than or equal to 2.10.
 20. The camera optical lensaccording to claim 19, wherein the F number of the camera optical lensis less than or equal to 2.06.